Vitamin B-Complex 100

Vitamin B-Complex 100

Solaray4.7 (3,851 ratings)
Format:Capsule Quantity: 100 VegCap(s) · 100 servings
Goals
$23.20 $0.23 per serving

Product analysis

69 out of 100

Vitamin B-Complex 100 supports the body’s normal use of food for energy and may help with fatigue linked to low B-vitamin intake.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality59

Several B-vitamin forms are clearly identified, including B6 and niacin. Quality is more uncertain for ingredients with undisclosed forms, while ordinary riboflavin has no clear absorption advantage.

Ingredient Transparency86

All listed amounts and most forms are disclosed, making serving comparisons practical. Several ingredients still lack specific form details.

Value For Money56

Value is mixed across the mixture, with favorable cost for riboflavin and B6. B5 and choline are expensive for their amounts, so the broader combination is not equally economical for every nutrient.

Customer Satisfaction88

Customer feedback is very positive across several thousand reviews. The substantial review base gives useful context to that favorable response.

Product Focus67

The clearest focus is filling B-vitamin gaps that affect energy and normal metabolism. High amounts do not establish extra energy or increased calorie burning once intake is adequate.

Format
Capsule
Container
100 VegCap(s)
Per serving
$0.23
Customer rating
4.7 · 3,851 ratings
Report analysis

Goals

Impact
High effect
A- Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Vitamin B5 · 100 mgRiboflavin · 100 mgThiamin · 100 mgVitamin B12 · 100 mcg
Study evidence
Thiamin Disputed 12 studies
Impact
High effect
B+ Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Biotin · 100 mcgNiacin · 100 mgVitamin B12 · 100 mcgRiboflavin · 100 mgThiamin · 100 mgVitamin B5 · 100 mgVitamin B6 · 100 mg
Study evidence
Biotin Supportive 5 studies
Niacin Supportive 17 studies
Thiamin Supportive 11 studies
Vitamin B6 Supportive 16 studies

Ingredients

IngredientAmount per servingScore
Thiamine (Thiamine Mononitrate)
100 mg 76
Riboflavin
100 mg 72
Niacin (Niacinamide)
100 mg 83
Vitamin B6 (Pyridoxine Hydrochloride)
100 mg 72
Folate
680 mcg DFE
Vitamin B12 (Cyanocobalamin)
100 mcg
Biotin
100 mcg
Pantothenic Acid (Calcium D-Pantothenate)
100 mg 70
Choline (Choline Bitartrate)
40 mg 50
Para-Aminobenzoic Acid
100 mg 89
Inositol
100 mg
Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
PABA · 100 mg OverallScore89
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA- Value
A serving lists 100 mg of PABA. The whole-product price relative to the PABA amount is moderate. PABA is named, but no pharmaceutical grade or purity designation is available. The available ingredient information lists no artificial colors, titanium dioxide or hydrogenated oils.
How this ingredient is rated

Active Ingredient Quality & Bioavailability80

PABA is named, but no pharmaceutical grade or purity designation is available.
PABA Source & Grade
PABA is named, but no pharmaceutical grade or purity designation is available.

Dose, Safety & Label Transparency100

A serving lists 100 mg of PABA. The available ingredient information lists no artificial colors, titanium dioxide or hydrogenated oils.
PABA Dosage Alignment
A serving lists 100 mg of PABA.
Label Disclosure Clarity
A serving lists 100 mg of PABA.
Additive and Excipient Quality
The available ingredient information lists no artificial colors, titanium dioxide or hydrogenated oils.

Value85

The whole-product price relative to the PABA amount is moderate.
Price per 100mg PABA
The whole-product price relative to the PABA amount is moderate.
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value
Each serving provides 100 mg of thiamin per serving, a high amount, at a high cost for the thiamin. It uses Thiamine Mononitrate, a standard water-soluble form. The listed information does not indicate the configured artificial colors or sweeteners.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

It uses Thiamine Mononitrate, a standard water-soluble form. The listed information does not indicate the configured artificial colors or sweeteners.
Thiamin Chemical Form
It uses Thiamine Mononitrate, a standard water-soluble form.
Excipient Purity
The listed information does not indicate the configured artificial colors or sweeteners.

Dose, Safety & Label Transparency100

The label states 100 mg of thiamin per serving, a high amount.
Thiamin Dosage Potency
The 100 mg of thiamin per serving is a high amount.
Label Transparency & Proprietary Blends
The label declares 100 mg of thiamin per serving.

Value40

The cost relative to the declared thiamin amount is high.
Price per Declared Dose
The cost relative to the declared thiamin amount is high.
A- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyC Value
The serving provides 100 mg of niacin as Niacinamide at a moderate cost per serving. The form is named, though the amount alone does not establish an outcome.
How this ingredient is rated

Active Ingredient Quality & Bioavailability86

Niacinamide is the named niacin source.
Niacin Form & Goal Alignment
Niacinamide is the stated niacin form.
Precursor Source Quality
Niacinamide is the named source of niacin.

Dose, Safety & Label Transparency92

The niacin source is named and the serving amount is stated.
Clarity of Chemical Form
The niacin form is specified as Niacinamide.
Form-Specific Dosage Efficacy
The serving provides 100 mg of niacin.
Flush Risk & Safety Labeling
The available information does not state a no-flush claim.

Value60

The cost per serving is moderate.
Price Per Effective Serving
The cost per serving is moderate.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Physicochemical properties of and volatile compounds in riboflavin fortified cloudy apple juice; study of its effect on job fatigue among Egyptian construction workers.
    Fouad S; Ibrahim GE; Hussein AMS; Ibrahim FA; El Gendy A · Heliyon · 2021
    Non-randomized trialEnergy forRiboflavin
  2. Vitamin B status in patients with chronic fatigue syndrome.
    Heap LC; Peters TJ; Wessely S · Journal of the Royal Society of Medicine · 1999
    Case-control study30 participantsEnergy forRiboflavin
  3. B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue treated with high dose oral thiamine.
    Bager P; Hvas CL; Hansen MM; Ueland P; Dahlerup JF · Molecular medicine (Cambridge, Mass.) · 2023
    Observational studyEnergy forRiboflavin
  4. Metabolic features of chronic fatigue syndrome.
    Naviaux RK; Naviaux JC; Li K; Bright AT; Alaynick WA; Wang L; Baxter A; Nathan N; Anderson W; Gordon E · Proceedings of the National Academy of Sciences of the United States of America · 2024
    Case-control study84 participantsEnergy forRiboflavin
  5. Effectiveness of Riboflavin in Inherited Metabolic Diseases: A Systematic Review
    Bregje Jaeger, Nina N Stolwijk, Femke Aaldering, Charlotte A Ruys, Marije Smits, Nicole I Wolf, Carla E M Hollak, Annet M Bosch · Journal of Inherited Metabolic Disease · 2026
    Systematic review381 studies pooledEnergy Metabolism Support forRiboflavin
  6. Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal thiamin deficiency.
    Smidt LJ; Cremin FM; Grivetti LE; Clifford AJ · Journal of gerontology · 1991
    Randomized trial80 participantsEnergy forThiamin
  7. Randomised clinical trial: high-dose oral thiamine versus placebo for chronic fatigue in patients with quiescent inflammatory bowel disease.
    Bager P; Hvas CL; Rud CL; Dahlerup JF · Alimentary pharmacology & therapeutics · 2021
    Randomized trial40 participantsEnergy forThiamin
  8. Dietary reference values for thiamin.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA); Turck D; Bresson JL; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Nowicka G; Pentieva K; Sanz Y; Siani A; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Lamberg-Allardt C; Przyrembel H; Tetens I; Gudelj Rakic J; Ioannidou S; de Sesmaisons-Lecarré A; Forss AC; Neuhäuser-Berthold M · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusEnergy forThiamin
  9. Effects of thiamine supplementation on exercise-induced fatigue.
    Suzuki M; Itokawa Y · Metabolic brain disease · 1996
    Randomized trial16 participantsEnergy forThiamin
  10. Long-term maintenance treatment with 300 mg thiamine for fatigue in patients with inflammatory bowel disease: results from an open-label extension of the TARIF study.
    Bager P; Hvas CL; Rud CL; Dahlerup JF · Scandinavian journal of gastroenterology · 2022
    Randomized trialEnergy forThiamin
  11. A new perspective on vitamin B12 deficiency in rheumatology: a case-based review.
    Dułak NA; Rytlewska M; Jaskólska M; Chmielewski M · Rheumatology international · 2024
    Case series3 participantsEnergy forVitamin B12
  12. Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression.
    Markun S; Gravestock I; Jäger L; Rosemann T; Pichierri G; Burgstaller JM · Nutrients · 2021
    Meta-analysis6,276 participants16 studies pooledEnergy forVitamin B12
  13. Patients' experiences with methylcobalamin injections in amyotrophic lateral sclerosis.
    Zubair AS; Saab L; Scharer K; Khokhar B · Brain circulation · 2024
    Qualitative study5 participantsEnergy forVitamin B12
  14. Cobalamin deficiency: clinical picture and radiological findings.
    Briani C; Dalla Torre C; Citton V; Manara R; Pompanin S; Binotto G; Adami F · Nutrients · 2014
    Narrative reviewEnergy forVitamin B12
  15. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  16. Biotin and contribution to normal energy-yielding metabolism: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusMetabolism Support forBiotin
  17. Pregnancy and lactation alter biomarkers of biotin metabolism in women consuming a controlled diet.
    Perry CA; West AA; Gayle A; Lucas LK; Yan J; Jiang X; Malysheva O; Caudill MA · The Journal of nutrition · 2015
    Clinical trial75 participantsMetabolism Support forBiotin
  18. Survey of the effect of biotin on glycemic control and plasma lipid concentrations in type 1 diabetic patients in kermanshah in iran (2008-2009)
    Hemmati M, Babaei H, Abdolsalehei M · Oman Medical Journal · 2013
    Randomized trial70 participantsMetabolism Support forBiotin
  19. Chromium picolinate and biotin combination improves glucose metabolism in treated, uncontrolled overweight to obese patients with type 2 diabetes
    César A Albarracin, Bobby C Fuqua, James L Evans, Ira D Goldfine · Diabetes/Metabolism Research and Reviews · 2008
    Randomized trial348 participantsMetabolism Support forBiotin
  20. Biotin supplementation reduces plasma triacylglycerol and VLDL in type 2 diabetic patients and in nondiabetic subjects with hypertriglyceridemia
    Cristina Revilla-Monsalve, Iván Zendejas-Ruiz, Sergio Islas-Andrade, Armida Báez-Saldaña, Miguel Angel Palomino-Garibay, Pedro Martín Hernández-Quiróz, Cristina Fernandez-Mejia · Biomedicine & Pharmacotherapy · 2006
    Randomized trial33 participantsMetabolism Support forBiotin